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參數(shù)資料
型號: DS2480B+T&R
廠商: Maxim Integrated Products
文件頁數(shù): 5/32頁
文件大?。?/td> 0K
描述: IC LINE DRVR W/SENSOR 1-W 8SOIC
產(chǎn)品培訓(xùn)模塊: 1-Wire Communications
Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 1
系列: *
其它名稱: DS2480B+T&RDKR
DS2480B
Maxim Integrated........................................................................................................................................................................................... 13
Table 4. CONFIGURATION PARAMETER VALUE CODES
Value Codes
Parameter Code
000
001
010
011
100
101
110
111
Unit
001 (PDSRC)
15
2.2
1.65
1.37
1.1
0.83
0.7
0.55
V/s
010 (PPD)
32
64
128
256
512
1024
2048
s
011 (SPUD)
16.4
65.5
131
262
524
1048
Note
ms
100 (W1LT)
8
9
10
11
12
13
14
15
s
101 (DSO/W0RT)
3
4
5
6
7
8
9
10
s
110 (LOAD)
1.8
2.1
2.4
2.7
3.0
3.3
3.6
3.9
mA
111 (RBR)
9.6
19.2
57.6
115.2
9.6
19.2
57.6
115.2
kbps
Note: The value code 110 of parameter 011 (Strong Pullup Duration) must not be used since it could
cause unexpected results.
The syntax of configuration commands is very simple. Each 8-bit code word contains a 3-bit parameter
code to specify the parameter and the 3-bit value code to be selected. Bit 7 of the command code is set to
0 and bit 0 is always a 1. To read the value code of a parameter, one writes all 0s for the parameter code
and puts the parameter code in place of the parameter value code. Table 5 shows the details.
The configuration command response byte is similar to the command byte itself. Bit 0 of the response
byte is always 0. When writing a parameter, the upper 7 bits are the echo of the command code. When
reading a parameter, the current value code is returned in bit positions 1 to 3 with the upper 4 bits being
the same as sent (see Table 6).
Table 5. CONFIGURATION COMMAND CODES
FUNCTION
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Write Parameter
0
parameter code
parameter value code
1
Read Parameter
0
parameter code
1
Table 6. CONFIGURATION COMMAND RESPONSE BYTE
FUNCTION
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2
BIT 1
BIT 0
Write Parameter
0
same as sent
0
Read Parameter
0
same as sent
parameter value code
0
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